AMA-Link Atomos-Ronin-Files, results in currupted audio

since the patches 6.5.4.1 to 6.5.4.4 of Avid Symphony, when I AMA-link to a Quicktime-mov
recorded with the Atomos Ronin field recorder, the audio gets corrupted. As you can see on the attaced screenshot the audio tracks are interrupted by party of silence.

This happens with both codecs you can record with the Atomos, DNxHD and ProRes. With the unpatched Version (6.5.4) the AMA-link works. So what was changed in the patches that causes this behaviour?